Public bug reported:
So I no longer can login using gdm3. ssh works fine and from tty console
aslo.
This seams to be limited to user that are stored in NIS.
But there also is some issue with local users.
I was running ubuntu 20.20 just fine but after a reboot there is some
serious issues with how users are handled. Since I get thrown out
directly after typing password there is a very limited amount of
information I can give.
lets start with the local user: if I start a gnome-terminal and run "id"
I get this.
uid=1000(kenjo_local) gid=1000(ken) groups=1000(ken)
if I then login to the same machine with "ssh localhost" and run id i
get the correct
uid=1000(kenjo_local) gid=1000(ken) groups=1000(ken),4(adm),27(sudo)
why ???
-----------------------------------
for nis users I have no information to give as I never get to a bash prompt and
can do anything. A critical error looks to be this
pam_systemd(gdm-password:session): Failed to create session: No such
process
since that is the first error that shows up for NIS user id that do not show
for local user id.
after this error it then terminates with
/usr/lib/gdm3/gdm-x-session[26595]: Unable to run X server
but everything looks to be permission related so if the system got user
id and group id correctly things would probably work fine. But I have no
idea why gdm3 gets different users than if I ssh into the machine.
** Affects: gdm3 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1883515
Title:
Can not login with gdm3 when user cred is stored in NIS
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